What is Sandstone
Below is a transcription of the above sign found at the Valley of Fire Visitor Center.
Comprised of grains of quartz sand cemented together by iron oxide, silica, calcite, or fine grain clays, sandstones take their color from their cement.
Silica or calcite make creamy white sandstones.
Iron oxides create the deep red color of Valley of Fire’s Aztec Sandstone.
Sandstone forms the spectacular red and white outcropping in the Valley of Fire.
Sandstone is used mainly in buildings.
In southern Nevada, sandstone often occurs in layers of red and white, the pattern making it very popular for fireplaces and other decorative projects.
Time Period: Mesozoic Era
Composition: Quartz sand grains
Location: Major formations throughout the park. Red and white banded sandstone is found at Rainbow Vista and White Domes.